the second amendment. >> we're trying to take to it the violent criminal than theinnocentlawbidingsecond amendment citizen. >> reporter: usually a vice president arrives to preside over a winning vote, but biden was here to witness its defeat. >> the amendment is not agreed to. >> reporter: four democrats with high gun ownership also voted no. >> that's nbc's kelly o'donnell reporting. there's a new twist in the case of two assassinated public officials in texas. police say the wife of a former justice of the peace has confessed to involvement in three koffman county shooting deaths. mark hasse and district attorney mike mcclellan and his wife last month. according to an affidavit she said her husband pulled the trigger. the two men who have been killed prosecuted him last year for theft. he was convicted and fired from his job and sentenced to probation. he has not been charged. >>> in business, today's weekly jobless claims could determine whether they slap back against the losses. the one-time darling apple shedding near 6%, briefly breaking $400 a share for the first time in more tha